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| O'Connell, Anna | Lane, Oscar | January 25, 1905 |
| O'Connell, Jeanette | Hammond, Walter (Lt.) | February 27, 1943 |
| O'Connell, Margaret | Mihm, John A. | February 10, 1909 |
| O'Connell, Nell | Sawyer, Henry | September 11, |
| O'Connor, John J. | McCormick, Catherine | November 26, 1902 |
| O'Connor, Julia | Ashford, John | April 21, 1898 |
| O'Connor, William | Sprague, Thurza | April 27, 1892 |
| Oderkirk, Elaine | Suddeth, Jack | December 30, 1958 |
| O'Donnell, Agnes | Herrmann, Fred | February 3, 1915 |
| O'Donnell, Edmund | Keithley, Dorothie | June 6, 1942 |
| O'Donnell, John Richard | George, Connie | April 24, |
| O'Donnell, Linda Marie | Herrmann, Kevin Dale | August 6, 1988 |
| O'Donnell, Thomas | Minnigan, Nancy | February 4, |
| O'Donnell, Thomas E. | Dugan, Mary Luella | February 12, 1924 |
| Oftedal, Amos | Johnson, Verda | January 25, 1935 |
| Oftedal, Amos | Willy, Kay | |
| Oftedal, Bessie | Griswold, Carl | May 8, 1937 |
| Oftedal, Marilyn | Hartman, Donald | November 17, 1956 |
| Oftedal, Oscar | Jacobson, Mabel | March 25, 1909 |
| Ohlschwager, L. | Kennedy, Daniel J. | September 29, 1956 |
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| O'Kane, James | Vaughn, Maxine | January 18, 1958 |
| O'Kane, Joyce | Rueff, Sheldon | 0/00/1968 |
| O'Kane, Kenneth | Lattin, Helen | July 23, 1940 |
| O'Kane, Richard | Long, Nellie | August 14, 1948 |
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| Oleson, Ernest | Edwards, Clarice Ione | August 22, 1936 |
| Oleson, Martha | Maakestad, Sjur | May 9, 1886 |
| Oleson, Oscar | Schultz, Ruth | |
| Oleson, Otto | Hanson, Thelma | 0/00/1940 |
| Oleson, Paul (Ensign) | Snyder, Maxine | November 18, 1944 |
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| Olson, Anna | Prestegard, Louis | January 30, 1902 |
| Olson, Brian Andrew | Gletty, Nancy Marie | June 25, 1972 |
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| Olson, Dorothy | Driscoll, Theodore A. | December 27, 1941 |
| Olson, Dorothy Ann | Weeks, Marshall Page | October 11, |
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| Olson, Gerhard | Berg, Gladys | October 29, 1932 |
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| Olson, Kalah | Bidstrup, Wayne | March 14, 1959 |
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| Olson, Leo H. | Johnson, Elaine | January 3, 1943 |
| Olson, Leroy | Bernard, Rita Mae | February , 1963 |
| Olson, Linda | Jeziorski, George | June 1, 1985 |
| Olson, Madell | Charlesworth, Donald (Lieut.) | February 13, 1944 |
| Olson, Minerva | Todd, Cedric (Staff Sgt) | January 2, 1945 |
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| Olson, Orrin Kenneth | Tuestad, Wilma Nora | November 19, 1934 |
| Olson, Oscar | Ames, Minnie | April 12, 1906 |
| Olson, Paul R. | Rosette, Constance L. "Connie" | August 19, 1959 |
| Olson, Paula | Kyler, Rodney | April 1, 1989 |
| Olson, Raymond M. | Hilleson, Helen Adeline | June 26, 1937 |
| Olson, Ronald | Todd, Mirinda | April 9, 1956 |
| Olson, Ronald H. | Egolf, Donna Jean | June 6, 1959 |
| Olson, Ruth Lillian | Sanderson, Raymond A. | July 7, 1923 |
| Olson, Suzanne L. | Sisler, James K. | May 1, 1993 |
| Olson, William | Boyd, Sarah | March 4, 1893 |
| O'Malley, William | Deegan, Nell | |
| Oppedahl, Sarah | Hillison, Thomas | October 27, 1912 |
| Orr, Lillie | Turnbull, James S. (Rev.) | October 24, 1889 |
| Orth, Iola | Houghtby, Gilmer | May 27, 1931 |
| O'Shaughnessy Patrick | Boston, Carol Ann | September 7, 1957 |
| Osland, Donald | Griepentrog, Ethel | June 26, 1959 |
| Osland, Gilmore | Josephson, Jean | June 4, 1939 |
| Osland, Helen Gertrude | Todd, Robert, Jr. | April 12, 1905 |
| Osland,, Hiram | Witt, Marguerite | June 29, 1935 |
| Osland, Sandra | Herrmann, Daniel | September 24, 1960 |
| Osman, Annabel | Lake, Dean N. | February 7, 1941 |
| Ostewig, Genevieve | Eglund, Amos | June 7, |
| Ostewig, Lillian Cecilia | Browman, Donald E. (Leiut) | May 28, 1942 |
| Ostewig, Mary | Munson, Conrrad J. | August 21, 1926 |
| Ostewig, Orville | July, Evelyn | November 26, 1921 |
| Ostewig, Susie | Crane, Fred B. | September 26, 1925 |
| Ott, Debra Dawn | Rood, Jeffery P. | September 19, 1992 |
| Ott, William Richard | Donoho, Anita Lynn | July 13, 2002 |
| Overby, Judy K. | Wilson, Raymond | June 18, 1960 |
| Overby, Mark | Swenson, Kathy Lynn | November 3, 1984 |
| Overby, Paul | Beck, Dorothy | December 26, 1959 |
| Overby, Phyllis | Jones, Robert | December 20, 1958 |
| Overright, Ed | Gates, Laura | March 9, 1929 |
| Overton, Annie M. | Lattin, Willis S. | January 20, 1909 |
| Overton, C. T. | Gates Addie | July 3, 1900 |
| Owen, Darrell | Schultz, Sandra K. | |
| Owens, Doris Elizabeth | Duffy, Edward | September 12, |
| Owens, Florence | Hipple, Edgar Jr. | August 12, 1941 |
| Owens, Ruth | McInerney, Louis R. | May, 1922 |
| Oxley, Lloyd A/2c | Finnestad, Janice | June 15, 1957 |
